English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Horizontal Directional Drilling (HDD) technology is an important way crossing a river for pipeline. However, due to the impact of different geological conditions, construction technology and other factors, usually, pipeline surface coating is damaged during HDD pullback process. Especially field joint coating position has been the weakest section of the HDD integrity protection. This article describes the main damage form of coating for HDD pipeline, as well as performance, features and applications of a variety of field joint coatings used for HDD pipeline, and the prospect for HDD pipeline integrity protection.

Field joint coating technology for horizontal directional drilling of oil and gas pipeline